Word Study
birdseed grass |
birdsong |
birdwatch |
birdwatcher |
birdwoman |
birectangular
| birefringence
| birefringent
| bireme
| biretta
| birgander
birectangular
CIDE DICTIONARY
birectangular, a. [Pref. bi- + rectangular.].
Containing or having two right angles; as, a birectangular spherical triangle. [1913 Webster]
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